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Updated: Feb 8, 2026

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
The Cutting Edge: Doppler Probe in Guiding Endoscopic Hemostasis
Kevin A Ghassemi1, Dennis M Jensen2
1Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine at UCLA, 100 Medical Plaza Driveway, Los Angeles, CA 90095, USA; CURE: Digestive Diseases Research Center, 11301 Wilshire Boulevard, Los Angeles, CA 90073, USA.
Abstract:
This article examines use of the Doppler endoscopic probe (DEP) for risk stratification and as a guide to definitive hemostasis of nonvariceal upper gastrointestinal (NVUGI) bleeding and colonic diverticular hemorrhage. Studies report that lesions with high-risk stigmata of recent hemorrhage (SRH) have a higher rate of a positive DEP signal compared with those without such SRH. Lesions with a persistently positive DEP signal after endoscopic hemostasis have a higher 30-day rebleeding rate. Studies document arterial blood flow underneath stigmata of recent hemorrhage as a risk factor for rebleeding of focal nonvariceal gastrointestinal lesions. With DEP probe as a guide, rates of definitive endoscopic hemostasis and clinical outcomes are improved compared with standard visually guided treatment.
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